{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Two elderly patients with a history of either cerebral vascular accident ( CVA ) or head trauma and no evidence of renal disease developed seizures while receiving maximum doses of imipenem / cilastatin ."}
{"Disease": ["cerebral vascular accident", "CVA", "head trauma", "renal disease", "seizures"], "Chemical": ["imipenem / cilastatin"]}